Skylight and greenhouse bar.



D. KRAFT. SKYLIGHT AND GREENHOUSE BAR.

APPLICATION IILBD'SEPT. 26,1913.

Patented Apr. 21, 191% BOLD-NA PLANOGRAPM c0., WMMIMION. B. O.

UNITED STATES PATENT OFFICE.

DANIEL KRAFT, OF OYSTER BAY, NEW YORK.

SKYLIGHT AND GREENHOUSE BAR.

To all whom it may concern Be it known that I, DANIEL KRAFT, a citizen-of the United States, and a resident of the town of Oyster Bay, county of Nassau, and State of New York, have invented a certain new and useful Improvement in Skylight and Greenhouse Bars, of which the following is a full, clear, and exact description, reference being had to the accompany ing drawings.

It is the purpose of this invention to so construct skylight, greenhouse and similar rafters, or so-called bars, that the glazing thereof may be efiected in a manner more quick, easy and inexpensive than any construction heretofore known to me and also the entire bar is so constructed that marked simplicity and cheapness are secured.

Generally stated, the invention consists in making the bar of two prominent parts, one is a metal part which is preferably made in the general form of a T beam and the other is a wooden part adapted to be securely attached to the metal part. The structure is provided with recesses for the reception of putty, cement, or equivalent sealing material and the glass may be readily applied and secured in place by inexpensive and quickly assembled means, such as ordinary carpenters brads or similar nails.

Referring to the drawings Figure 1 illus trates a view partly in section of a curved bar, the glazing being in position; Fig. 2 illustrates a vertical sectional view taken through the bar and showing two of the glass lights in position.

In the drawings 1 represents the metal part of the bar. It is in the general form of a T beam, that is to say, has a vertical web and two horizontally extending or lateral webs. They are preferably made somewhat concave upon their upper surface, as shown.

2 is a wooden bar adapted to rest upon the upper surface of the metal part. It may be attached thereto in any manner but preferably by nails 8, 3, which may be galvanized iron or copper, driven upwardly through the wooden bar 2 and clenched as at 4:, 4:, on their upper surface. They may of course be driven in the reverse direction, but if so, it will usually be necessary to bore the wooden bar for their passage, which will add somewhat to the expense.

5, 5, are two glass plates which may be of Specification of Letters Patent.

Application filed September 26, 1913.

Patented Apr. 21, 1914.

Serial No. 791,887.

the usual construction and 6, 6, is putty, cement or equivalent sealing material which gives water-tightness to the structure.

7, 7, are nails, or their equivalent, preferably so-called carpenters brads, which may be readily driven into the wooden bar,

thus securely holding the glass in position, as shown in Fig. 1. A brad 8 may beneficially be placed at the lower edge of each pane of glass to prevent the same from slipping downwardly.

It will be obvious to those who are familiar with such matters that the details of construction which I have described and illustrated may be varied to a certain extent without departing from the essentials of the invention, as, for example, the wooden bar 2 may be fastened to the metal part 1 by means other than the nails 3, 8; also the laterally projecting members or flanges of the bar need not necessarily be concave. I prefer this construction, however, so as to allow of the presence of a sufficient body of putty, cement or equivalent sealing material to efliciently render the structure water tight; also of course it will be understood that the curvature of the bar which I show in Fig. 1 is illustrative merely of the possible forms. The bars may be straight or curved in any other manner, or partly straight and partly curved. I therefore do not limit myself to the specific construction shown, that being one form only in which the invention may be embodied.

I claim:

A greenhouse or similar structure embodying metallic rafters or bars composed of T beams the upper surface whereof is hollowed, a wooden bar attached to the longitudinal center of each T beam by nails driven through openings in the beam and entering the wooden bar, sealing material placed in the hollowed upper surface of the beam by the sides of the wooden bar, glass plates supported at their edges upon the sealing material and nails driven into the wooden bar outside the glass to hold it in position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

DANIEL KRAFT.

Witnesses:

PHILLIPS ABBOTT, DONALD B. ABBOTT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

